Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬¬¬((r ↔ r) ∧ ((T ∧ r) ∨ ¬T))

⇒ logic.propositional.nottrue

¬¬¬((r ↔ r) ∧ ((T ∧ r) ∨ F))